CN101557559A - Method for switching transmission modes of multimedia broadcasting service and multicasting service - Google Patents
Method for switching transmission modes of multimedia broadcasting service and multicasting service Download PDFInfo
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- CN101557559A CN101557559A CNA2008100667096A CN200810066709A CN101557559A CN 101557559 A CN101557559 A CN 101557559A CN A2008100667096 A CNA2008100667096 A CN A2008100667096A CN 200810066709 A CN200810066709 A CN 200810066709A CN 101557559 A CN101557559 A CN 101557559A
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Abstract
This invention discloses a method for switching transmission modes of a multimedia broadcasting service and a multicasting service, comprising the steps of: (1) counting number of users receiving the multimedia broadcasting service and the multicasting service in a cell; (2) setting a switching probability threshold according to current transmission modes of the multimedia broadcasting service and the multicasting service and the range of the number of users; (3) generating the switching probability value switched by the service mode; and (4) comparing the switching probability value with the switching probability threshold; if the switching probability value is more than the switching probability threshold, the switching is carried out, and otherwise, the current service transmission mode is maintained. The invention realizes flexible counting of the number of users of current services when the rule of the MBMS service user number in the cell is set, so that the stability of the system is improved; and the invention adopts different disciplines to generate the switching probability value, and compares the switching probability value with the switching probability threshold to determine whether the transmission mode is switched, thereby determining the conditions of switching the transmission modes, satisfying the requirement of the stability of the switching probability threshold and achieving the accurte switching of the service transmission mode.
Description
Technical field
The present invention relates to communication field, relate in particular to the changing method of a kind of MBMS business (MultimediaBroadcast/Multicast Service, multimedia broadcasting and multicast service) transmission mode.
Background technology
MBMS is a kind of new business in the third generation mobile, and particularly a data source among the mobile network sends the business of the point of data to multiple spot to a plurality of users, can realize that Internet resources are shared, improves utilization rate of network resource, the interface resource of especially eating dishes without rice or wine.The MBMS of 3GPP definition can not only realize the classes of messages multicast and the broadcasting of plain text low rate, and can realize the multicast and the broadcasting of high-speed multimedia business.
The MBMS business can adopt different transmission modes: PTM (Point to Multipoint, point-to-multipoint) and PTP (Point to Point, point-to-point) pattern in a mobile network's sub-district.Wherein, the PTM pattern is a point-to-multipoint ground MBMS transmission business, be RNC (RadioNetwork Controller, radio network controller) not with each UE (User Equipment, the user) sets up special-purpose the connection, and using common signal channel MBMS transmission business, the MBMS service bearer is on common signal channel; And ptp mode is a point-to-point ground MBMS transmission business, promptly sets up DPCH between RNC and each UE and comes the MBMS transmission business.
At present, sub-district in the mobile communcations system is when determining to adopt which kind of transmission mode carrying MBMS professional, mainly be to adopt the number of users of accepting the MBMS business in sub-district of certain method statistic, determine also promptly to realize transmission mode by counting process according to this number of users.
Counting process is as follows:
A, RNC count, and will obtain to accept the user profile of MBMS business and be recorded among the MBMS business contexts Context by CN (Core Net, core net);
B, RNC add up the number of users of accepting the MBMS business among the present MBMS business contexts Context, if the number of users of accepting the MBMS business of statistics surpasses the predetermined threshold that adopts the PTM mode transfer, then this MBMS business adopts the transmission mode of PTM in this sub-district, broadcasts by common signal channel;
C, if the not enough predetermined threshold of the number of users of the MBMS business of accepting of statistics, adjust after count cycle or the counting mode repeat count decision more so and whether adopt the PTP transmission mode.
There is following shortcoming in above-mentioned prior art:
The number of users that needs the sub-district to be accepted the MBMS business in the process of counting or counting carries out real-time statistics, and there is instability in the number of users of statistics, thereby may cause a MBMS business in the sub-district between two kinds of transmission modes, to switch back and forth, for example, first statistics is to accept MBMS service-user number in the sub-district to surpass thresholding in counting process, and next count results is to accept MBMS service-user number in the sub-district less than thresholding, according to twice different statistics, system is the service switchover transmission mode frequently, the easy like this system's instability that causes.
Summary of the invention
Technical problem to be solved by this invention provides a kind of changing method of flexible, reliable MBMS service transmission mode, the stability of enhanced system.
The objective of the invention is to be achieved through the following technical solutions:
The changing method of a kind of multimedia broadcasting and transmission mode of multicast service may further comprise the steps:
(1) adds up the number of users of accepting multimedia broadcasting and multicast service in the sub-district;
(2) set switching probability threshold according to the transmission mode of current multimedia broadcasting and multicast service in the sub-district and the scope of number of users;
(3) generate the switching probability value that business model is switched;
(4) size of more described switching probability value and switching probability threshold, is then switched greater than the latter as if the former, otherwise keeps the current business transmission mode.
Wherein, in the described step (1),, then adopt the mode of real-time statistics to add up the number of users of accepting multimedia broadcasting and multicast service if the transmission mode of current multimedia broadcasting and multicast service is an ad hoc mode; If the point-to-multipoint pattern then adopts the fixed cycle mode to add up the number of users of accepting multimedia broadcasting and multicast service.
Wherein, in the described step (3),, adopt the number of users piecewise function to generate the switching probability value at current number of users scope and the service transmission mode of accepting multimedia broadcasting and multicast service.
Wherein, in the described step (3),, adopt the time slice function to generate the switching probability value at the statistical law and the service transmission mode of current business in different time sections degree popular with users.
Wherein, in the described step (3),, adopt professional number piecewise function to generate the switching probability value at the number of services and the service transmission mode of current area.
Wherein, in the described step (3),, adopt the load piecewise function to generate the switching probability value at the load condition and the service transmission mode of current area.
Wherein, in the described step (3), according to events of equal probability evenly distribute [0,1] generate the switching probability value at random.
The present invention has following beneficial effect:
(1) the present invention in setting the statistics sub-district during MBMS service-user number rule in different ways, realize the number of users of statistics current business flexibly, thereby improved the stability of system.
(2) the present invention adopts different rules to generate the switching probability value, and itself and switching probability threshold come relatively to determine whether transmission mode is switched, the condition that the transmission mode that has been clear and definite is also switched, the requirement of compliance with system operation stability has realized the accurate switching of service transmission mode.
Description of drawings
Fig. 1 is the changing method flow chart of initial time MBMS service transmission mode;
Fig. 2 is the changing method flow chart of transmission mode in the MBMS service operation process.
Embodiment
Below in conjunction with drawings and the specific embodiments the present invention is further described:
Embodiment one
Present embodiment is that system initially counts under the situation of number of users, carry out the specific embodiment that the MBMS service transmission mode switches according to switching law, first kind of mode adopts ptp mode, and the second way adopts the PTM pattern, as shown in Figure 1, specifically may further comprise the steps:
101, when the professional initiation of MBMS, startup fixedly measurement period is added up MBMS users interest number, and setting initial transmission pattern is a ptp mode;
102, after RNC finishes the statistics of number of users, obtain the switching probability threshold value according to current business PTP transmission mode and number of users scope;
103, according to events of equal probability evenly distribute [0,1] generate the switching probability value at random;
104, the size of switching probability threshold and switching probability value relatively, if switching probability threshold less than the switching probability value, then the transmission mode of MBMS business switches to the PTM pattern, otherwise remains unchanged.
Embodiment two
Present embodiment is under MBMS service transmission mode one stable condition, and statistics current business number of users carries out the specific embodiment that the MBMS service transmission mode switches according to switching law, first kind of mode adopts ptp mode, the second way adopts the PTM pattern, as Fig. 2, specifically may further comprise the steps:
201, after the professional initiation of MBMS, adopt different counting modes at the current business transmission mode, promptly the business to the PTP transmission mode adopts the mode of real-time statistics to add up number of users, and adopts the fixed cycle statistical for the business of PTM transmission mode;
202, finish the statistics of number of users as RNC, set the switching probability threshold value according to current business transmission mode and number of users scope;
203, according to events of equal probability evenly distribute [0,1] generate the switching probability value at random;
204, the size of switching probability threshold and switching probability value relatively, if switching probability threshold less than the switching probability value, then MBMS business model switching, otherwise service transmission mode remains unchanged.
Embodiment three
At the step 203 among the embodiment two, the generation method of switching probability value at the number of users distribution and the service transmission mode of current business, adopts the number of users piecewise function to generate the switching probability value after can also initiating for: MBMS is professional.For example, when number of users was big, if business model is a ptp mode, it was bigger then to adopt piecewise function to generate the switching probability value, if business model is the PTM pattern, it is less then to adopt piecewise function to generate the switching probability value; And for example, when number of users hour, if business model is a ptp mode, it is less then to adopt piecewise function to generate switching probability value, if business model is the PTM pattern, then adopts piecewise function generation switching probability value bigger.
Embodiment four
At the step 203 among second embodiment, after the generation method of switching probability value can also be initiated for: MBMS is professional, at different time sections statistical law and service transmission mode popular with users, adopt the time slice function to generate the switching probability value at current business.For example, when number of users was big, if business model is a ptp mode, it was bigger then to adopt piecewise function to generate the switching probability value, if business model is the PTM pattern, it is less then to adopt piecewise function to generate the switching probability value; And for example, when number of users hour, if business model is a ptp mode, it is less then to adopt piecewise function to generate switching probability value, if business model is the PTM pattern, then adopts piecewise function generation switching probability value bigger.Below this method is illustrated:
It is as shown in table 1,
Table 1
| Time period | Switching probability threshold |
| 06:00-22:00 | 0.2 |
| 22:00-06:00 | 0.9 |
When time period 06:00-22:00, at first insert small number of users such as 2, the professional ptp mode that adopts, progressively insert other users subsequently, accept identical services, when being linked into a certain number of user (such as 10), all users' transmission mode changes, by special-purpose attitude to public attitude PTM; And when time period 22:00-06:00, at first insert small number of users such as 2, the professional ptp mode that adopts, progressively insert other users subsequently, accept identical services, when access reaches a certain number of user once more (10), all users' transmission mode does not change, still special-purpose attitude PTP.
Embodiment five
At the step 203 among second embodiment, the generation method of switching probability value at the professional number and the service transmission mode of current area, adopts professional number piecewise function to generate the switching probability value after can also initiating for: MBMS is professional.For example, the professional number of current area if business model is a ptp mode, then adopts piecewise function generation switching probability value bigger more for a long time, if business model is the PTM pattern, it is less then to adopt piecewise function to generate the switching probability value; And for example, the professional number of current area if business model is a ptp mode, then adopts piecewise function generation switching probability value less more after a little while, if business model is the PTM pattern, it is bigger then to adopt piecewise function to generate the switching probability value.
Embodiment six
At the step 203 among second embodiment, after the generation method of switching probability value can also be initiated for: MBMS is professional,, adopt the load piecewise function to generate the switching probability value at the load and the service transmission mode of current area.For example, when the load of current area was heavier, if business model is a ptp mode, it was bigger then to adopt piecewise function to generate the switching probability value, if business model is the PTM pattern, it is less then to adopt piecewise function to generate the switching probability value; And for example, when the load of current area was light, if business model is a ptp mode, it was less then to adopt piecewise function to generate the switching probability value, if business model is the PTM pattern, it is bigger then to adopt piecewise function to generate the switching probability value.Below this method is illustrated:
It is as shown in table 2,
Table 2
| Load condition | Switching probability threshold |
| Underloading | 0.8 |
| General load | 0.5 |
| Overload | 0.1 |
In certain time, during such as General Definition busy (load is assumed to be general or overload), at first insert small number of users such as 2, the professional ptp mode that adopts, progressively insert other users subsequently, accept identical services, when being linked into a certain number of user (such as 10), all users' transmission mode changes, by special-purpose attitude PTP to public attitude PTM; And in the another one time, off-peak hours (load is assumed to be underloading or general load) such as General Definition are inserted small number of users such as 2, the professional ptp mode that adopts, progressively insert other users subsequently, accept identical services, when access reaches a certain number of user once more (10), all users' transmission mode does not change, or ptp mode.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1, the changing method of a kind of multimedia broadcasting and transmission mode of multicast service is characterized in that, may further comprise the steps:
(1) adds up the number of users of accepting multimedia broadcasting and multicast service in the sub-district;
(2) set switching probability threshold according to the transmission mode of current multimedia broadcasting and multicast service in the sub-district and the scope of number of users;
(3) generate the switching probability value that business model is switched;
(4) size of more described switching probability value and switching probability threshold, is then switched greater than the latter as if the former, otherwise keeps the current business transmission mode.
2, the changing method of multimedia broadcasting as claimed in claim 1 and transmission mode of multicast service, it is characterized in that, in the described step (1), if the transmission mode of current multimedia broadcasting and multicast service is an ad hoc mode, then adopt the mode of real-time statistics to add up the number of users of accepting multimedia broadcasting and multicast service; If the point-to-multipoint pattern then adopts the fixed cycle mode to add up the number of users of accepting multimedia broadcasting and multicast service.
3, the changing method of multimedia broadcasting as claimed in claim 1 or 2 and transmission mode of multicast service, it is characterized in that, in the described step (3), at current number of users scope and the service transmission mode of accepting multimedia broadcasting and multicast service, adopt the number of users piecewise function to generate the switching probability value.
4, the changing method of multimedia broadcasting as claimed in claim 1 or 2 and transmission mode of multicast service, it is characterized in that, in the described step (3), at statistical law and the service transmission mode of current business, adopt the time slice function to generate the switching probability value in different time sections degree popular with users.
5, the changing method of multimedia broadcasting as claimed in claim 1 or 2 and transmission mode of multicast service is characterized in that, in the described step (3), at the number of services and the service transmission mode of current area, adopts professional number piecewise function to generate the switching probability value.
6, the changing method of multimedia broadcasting as claimed in claim 1 or 2 and transmission mode of multicast service is characterized in that, in the described step (3), at the load condition and the service transmission mode of current area, adopts the load piecewise function to generate the switching probability value.
7, the changing method of multimedia broadcasting as claimed in claim 1 or 2 and transmission mode of multicast service is characterized in that, in the described step (3), according to events of equal probability evenly distribute [0,1] generate the switching probability value at random.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867528A (en) * | 2010-06-25 | 2010-10-20 | 北京星网锐捷网络技术有限公司 | Multicast service processing method and device |
| CN102256261A (en) * | 2011-07-14 | 2011-11-23 | 东北大学 | Dynamic spectrum access method with network cognition ability |
| WO2014187140A1 (en) * | 2013-05-23 | 2014-11-27 | 中兴通讯股份有限公司 | Method and apparatus for switching transmission mode, and computer storage medium |
| CN105099608A (en) * | 2014-05-12 | 2015-11-25 | 中国移动通信集团设计院有限公司 | Self-adaptive transmission mode switching method and apparatus |
| CN107836102A (en) * | 2015-06-04 | 2018-03-23 | 三星电子株式会社 | The method of multimedia service and the electronic equipment for it are provided |
| WO2022021350A1 (en) * | 2020-07-31 | 2022-02-03 | Lenovo (Beijing) Limited | Methods and apparatuses for data transmission for multicast broadcast service |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE387069T1 (en) * | 2003-05-09 | 2008-03-15 | Motorola Inc | METHOD AND DEVICE FOR CONTROLLING ACCESS TO MULTIMEDIA BROADCAST MULTICAST SERVICE IN A PACKET DATA COMMUNICATIONS SYSTEM |
| CN1571532A (en) * | 2003-07-15 | 2005-01-26 | 北京三星通信技术研究有限公司 | Method of point-to-point and point-to-multipoint conversion in multimedia broadcasting and multicast service |
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2008
- 2008-04-11 CN CN2008100667096A patent/CN101557559B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867528A (en) * | 2010-06-25 | 2010-10-20 | 北京星网锐捷网络技术有限公司 | Multicast service processing method and device |
| CN101867528B (en) * | 2010-06-25 | 2012-09-05 | 北京星网锐捷网络技术有限公司 | Multicast service processing method and device |
| CN102256261A (en) * | 2011-07-14 | 2011-11-23 | 东北大学 | Dynamic spectrum access method with network cognition ability |
| CN102256261B (en) * | 2011-07-14 | 2013-08-14 | 东北大学 | Dynamic spectrum access method with network cognition ability |
| WO2014187140A1 (en) * | 2013-05-23 | 2014-11-27 | 中兴通讯股份有限公司 | Method and apparatus for switching transmission mode, and computer storage medium |
| CN105099608A (en) * | 2014-05-12 | 2015-11-25 | 中国移动通信集团设计院有限公司 | Self-adaptive transmission mode switching method and apparatus |
| CN105099608B (en) * | 2014-05-12 | 2018-10-12 | 中国移动通信集团设计院有限公司 | A kind of Adaptive Transmission mode switching method and device |
| CN107836102A (en) * | 2015-06-04 | 2018-03-23 | 三星电子株式会社 | The method of multimedia service and the electronic equipment for it are provided |
| WO2022021350A1 (en) * | 2020-07-31 | 2022-02-03 | Lenovo (Beijing) Limited | Methods and apparatuses for data transmission for multicast broadcast service |
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| CN101557559B (en) | 2011-09-21 |
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